Re: Vizio E400I-B2 powering on problem
Ah ok, thank you good sir!...
TheCockroach
Member
Last Activity: 03-01-2017, 10:00 PM
Joined: 09-26-2015
Location: Strawberry Plains, TN
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Re: Vizio E400I-B2 powering on problem
Any word from your end, about what the problem with these TV's was/is, by chance..?...Leave a comment:
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Re: Vizio E400I-B2 powering on problem
Which board is that on again btw, the main board (aka, same one that I took the LED measurements off of, or..) ?...Leave a comment:
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Re: Vizio E400I-B2 powering on problem
Kind of good to know that I'm not the only one with this problem, but it also kinda sucks. Means there's probably a lot of others as well, as it may just be an inherent flaw with this particular model.
Maybe I should leave the picture taking to nwcs, since it'd seem my camera produces really poor quality results. if he can't get back to us with some, then I'll borrow a friends phone to take pics with instead....Leave a comment:
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Re: Vizio E400I-B2 powering on problem
Hmmmm.. they're labeled as 50v 100uf caps, all 3 are.
And yes, I left black lead on the chassis and the red lead on the connectors and turn the TV on, and then then Voltage only jumped up to 32VDC (32VDC exactly, on all 5 leads)...Leave a comment:
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Re: Vizio E400I-B2 powering on problem
Ok, so each and every wire (Brown, Red, Orange, Yellow, and Green), all read a solid 32.0, which seems a bit weird to me. But it could be right too, I suppose. Luckily one of you will know for sure, though~!
And just, you know, to make sure there's no human error on my end in regards to my meter.. I've included a screenie of my settings. So if anything's off, please let me know!...Leave a comment:
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Re: Vizio E400I-B2 powering on problem
I did actually.
This was my process. I attached the black lead to the chassis, with a clamp (that even had rubber ends, not that that'd matter in this case), so that my hands could be free for holding the red lead and powering on TV at same time.
Then (with the wiring harnesses all attached) put the red lead on the back-side of the boards connector (aka, the metal post going from where each black wire connects to the motherboard. Then, with the red lead held there, I powered on the TV with my free hand....Last edited by TheCockroach; 12-31-2016, 11:28 AM.Leave a comment:
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Re: Vizio E400I-B2 powering on problem
Ok, following your directions exactly, here are my results:
Moving from the outside black wire to the innermost-
#1: 8.20
#2: 8.27
#3: 8.40
#4: 8.39
#5: 8.18...Leave a comment:
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Re: Vizio E400I-B2 powering on problem
You most certainly can! It's not the best resolution, but for what you're asking I THINK it should suffice. Please let me know if not, and I'll do better....Leave a comment:
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Re: Vizio E400I-B2 powering on problem
First off, sorry for the delayed response. But I'm sure you guys know how the holidays can be at times, lol.
Ok well, I'm just gonna assume that those set's of red/black wires, could instead equate to sets of "positive/negative" wires for my particular situation. Since this seems to be the wire array on my end, that you were referring to:
IF I'm correct, would that mean there is 5 different LED strings? And as for testing those, could I latch the ground onto the frame, or would...Leave a comment:
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Re: Vizio E400I-B2 powering on problem
Hmm, well I've checked the backside, and the solder joints "appear" pretty intact. I've included pics also, just in case I don't know what I'm talking about.
This is the first time I've ever worked with/on an LED TV, so I have absolutely no idea where/how to check that. Care to share any pointers on that, by chance?...Leave a comment:
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Vizio E400I-B2 powering on problem
Hello!
A friend of mine had brought me a TV to look at, to see if I could figure out what was wrong with it for him. When hitting the power button, it will flash 'Vizio" across the screen for about 1/2 a second, and then go right back off again.
I've already checked the yellow 5v wire going from the power board to the mainboard, and it's reading a solid 5v. So I'm trying to figure out how to proceed, in figuring out what the problem is. There is a very rapid "clicking" sound coming from the power supply board, but it's not very loud. Not sure if that's... -
Re: Samsung monitor won't turn on. (Syncmaster 941BW)
Okay OMFG... this has now officially turned into a pure nightmare for me Lol..
I'm trying to pick out the best deal (and quality, at the same time) soldering iron and associated supplies.. and tried checking 3 different places, Home Depot, Ebay, and Newegg.com.
And there's just TOO many choices lmao! I've been stuck in a constant OCD loop for around 3-4 hours now.. where I just.. can't decide.. *screams out loud*
WhatToDo...
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Re: Samsung monitor won't turn on. (Syncmaster 941BW)
Hmm, is that one of the components on the power board itself? And if so, do you think you could point it out to me, via one of the pics I've uploaded?
Thank you for the info though either way!
...
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Re: Samsung monitor won't turn on. (Syncmaster 941BW)
I just wanted to say thank you to anyone/everyone that helped me out in this post. I'm the type of person, that I'll go to just about ANY possible length to help out someone else, whenever I'm able to. And also the type that usually doesn't go and ask for help most of the time, unless I REALLY need it badly. Out of the few times I have actually went and posted on a forum somewhere though, asking for help, most of the time I've not been able to get it. And perhaps, I just wasn't posting in the right place to begin with all those...Leave a comment:
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Re: Samsung monitor won't turn on. (Syncmaster 941BW)
Here's a list of the info I could find on my caps:
3x Samwha WB | 25v, 47OuF, 105c(M), X9A Pet
1x Samwha WB | 16v, 1000uF, 105c(M), X9A Pet
2x Samwha WB | 25v, 330uF, 105c(M), X9A Pet
1x Samwha WB | 50v, 1uF, 105c(M), X9A Pet
1x Samwha WB | 35v, 47uF, 105c(M), X9A Pet
Although.. I'm not a very good solderer. But I think it's partly just from lack of real practice, and also from lack of not knowing how to properly do it and/or just not having all the right tools....Last edited by TheCockroach; 09-28-2015, 07:37 PM.Leave a comment:
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Re: Samsung monitor won't turn on. (Syncmaster 941BW)
Ok so.. I took out the power supply from the other monitor, and put it in the "bad" one. It came right on, and I'm using it as we speak. So, that means apparently the other power supply WAS bad, then..?
But according to the tests, it seemed to be good, right? Is there anything else in particular on it, that I can check, to see if I can find out where the problem is coming from?
And nope, I didn't before.
This is kind of the story of my life, though......Last edited by TheCockroach; 09-28-2015, 06:11 PM.Leave a comment:
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Re: Samsung monitor won't turn on. (Syncmaster 941BW)
Nope, I haven't yet, but I guess that's the next step then. Most people would have tried that first, I guess. But I didn't for one sole reason.
Which is, with my luck, something would end up
it up if I had tried that first haha.. Let's just say, my luck is so bad, that there's a better chance that I could've touched the connectors of that 450VDC Cap with a big metal object (while it was plugged in..) and only gotten a little static shock, then that my spare monitor would've still worked...
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Re: Samsung monitor won't turn on. (Syncmaster 941BW)
Yup, it's showing around 5.13V....Leave a comment:
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Re: Samsung monitor won't turn on. (Syncmaster 941BW)
Should I assume that the best way to do that, is to lay the board back into it's "slot" in the case, and then test it by placing the leads onto the associated pins on the bottom side of the board? And if so, what should I set my multimeter at, DCV (20)? And last, but not least, I'm assuming that in this case, it doesn't matter which lead is on which pin, right?
If you mean, the small white connector that goes from the power supply board, to the other board, then yes. Assuming that's...Leave a comment:
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